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From "Kai Zheng (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-12060) Address some issues related to ByteBuffer type input/output buffers for raw erasure coders
Date Tue, 09 Jun 2015 09:50:00 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-12060?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Kai Zheng updated HADOOP-12060:
-------------------------------
    Attachment: HADOOP-12060-HDFS-7285-v1.patch

Uploaded a patch to address the issues listed in the JIRA. [~jingzhao] would you take a look
at it? Thanks.

> Address some issues related to ByteBuffer type input/output buffers for raw erasure coders
> ------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-12060
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12060
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: io
>            Reporter: Kai Zheng
>            Assignee: Kai Zheng
>         Attachments: HADOOP-12060-HDFS-7285-v1.patch
>
>
> In HDFS-8319 [~jingzhao] raised some issues about ByteBuffer type input/output buffers
for raw erasure coders:
> * Should support ByteBuffers originated from {{ByteBuffer#slice}} calls;
> * Should clearly spec in Javadoc that no mixing of on-heap buffers and direct buffers
are allowed, and with necessary checking codes ensuring the same type of buffers are used.
> In HDFS-8319 patch by [~jingzhao] there are some good refactoring codes that would be
incorporated here.
> As discussed open this to address the issues separately.



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